-ic bbb bbc bbd bbg bbi bbk bbo bcb bcc bcd bcg bci bck bco bdb bdc bdd bdg bdi bdk bdo bgb bgc bgd bgg bgi bgk bgo bi- bib bic bid big bii bik bio bkb bkc bkg bkk bko bob boc bod bog boi bok boo c-- cbb cbc cbd cbg cbi cbk cbo ccb ccc ccd ccg cci cck cco cdb cdc cdd cdg cdi cdk cdo cgb cgc cgd cgg cgi cgo ci- cib cic cid cig cii cik cio ckb ckc ckd cki cko co- cob coc cod cog coi cok coo dbb dbc dbd dbg dbi dbk dbo dcb dcc dcd dcg dci dck dco ddb ddc ddd ddg ddi ddk ddo dgc dgd dgg dgi dgk di- dib dic did dig dii dik dio dkb dkc dkg dki dkk dko dob doc dod dog doi dok doo g-d gbc gbd gbg gbi gbk gbo gcb gcc gcd gcg gci gck gco gdb gdc gdd gdi gdk gdo ggb ggc ggd ggg ggi ggo gib gic gid gig gii gik gio gkb gkd gko gob goc god gog goi gok goo i-d ibb ibc ibd ibg ibi ibk ibo icb icc icd icg ici ick ico idb idc idd idg idi idk ido igb igc igd igg igi igk igo iib iic iid iii iio ikb ikc iki ikk iko io- iob ioc iod iog ioi ioo kbb kbc kbd kbi kbk kbo kcb kcc kcd kcg kci kck kdb kdc kdg kdk kdo kgb kgc kgd kgi kgo kib kic kid kig kii kik kio kkb kkc kki kkk kob koc kod kog koi kok koo o-i ob- obb obc obd obg obi obk obo oc- ocb occ ocd ocg oci ock oco odb odc odd odg odi odo ogc ogd ogg ogi ogo oib oic oid oii oik oio okb okc okd okg oki okk oko oo- oob ooc ood oog ooi ook ooo